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30 votes
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Different infill in the same part

This answer explains that you can have different infill within the same part. Firstly the implementation in Ultimaker Cura is described, secondly how you can do this in Slic3r. Ultimaker Cura I've ...
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22 votes
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How does one use a heat tower?

When you slice an STL of a heat tower, you need to tell the slicer that you need a different temperature at a certain level and maintain that new temperature until another change is requested. The ...
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15 votes
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Why do some models appear broken in slicing software?

My understanding is that this occurs when the object is not a true solid. Since an STL holds the triangulation of each face and spline, the slicing engine is not "smart" enough to determine ...
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15 votes
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Why is it conventional to set line width > nozzle diameter?

There are several things at play that can make a wider line nice to have: First layer adhesion Due to some filaments having serious struggle to get the first line or layer stuck to the bed, it can be ...
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14 votes
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Slicer line width vs. extrusion multiplier for layer adhesion?

Generally speaking, both settings result in the same1: The feed rate of the filament gets adjusted. Either you set a general multiplier, or you demand a wider line which does make it set a higher ...
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11 votes
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How can I create PNG image files from STL files?

If you have OpenSCAD installed, this shell script will generate 100x100 pixel PNG images for each STL file in your current directory. ...
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10 votes
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How to configure Cura to run the Z probe before heating

In Cura (and Slic3r), you can 100% customize what the printer does before printing your actual model through custom start/end g-code. If you navigate to the ...
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10 votes
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How to build CuraEngine?

I'm assuming you actually want to build Cura, rather than simply install Cura. If you instead want to install Cura, you can try sudo apt-get install cura-engine ...
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  • 216
10 votes

Why is it conventional to set line width > nozzle diameter?

Shouldn't a 0.4 mm nozzle create a line of plastic 0.4 mm wide Not necessarily. Due to a phenomenon known as die swell extruding plastic through a 0.4 mm nozzle, the line of plastic ...
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9 votes
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Why is the bottom of my part not smooth

Your nozzle is too far from your bed. The first layer isn't squished down sufficiently, resulting in these gaps. If your first layer looks like this, you should cancel your print and adjust the bed. ...
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9 votes

Different infill in the same part

I don't particularly recommend the following, but it may be easier than 0scar's answer (which I would recommend implementing if you use Cura). Slice your object twice, once at the lower infill and ...
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8 votes
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Extrusion adjustment

SHORT ANSWER You're not supposed to do the single-wall perimeter thickness test to calibrate Simplify3D. That screws up the extrusion volume. The correct volume calibration procedure for S3D is: ...
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8 votes
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Cura 2.4 missing "split object into parts"

I don't think this feature was implemented at all with Cura v2.x. As the developers say on the v2.1 release, "Cura has been completely reengineered". Finding proper changelog documentation appears ...
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8 votes
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Relation between layer height and bond strength

My3dmatter.com performed a series of tests with PLA, using "a universal testing machine". They conclude: Layer height influences the strength of a printed part when it becomes thin. A printed ...
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8 votes
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Slicing problem - Slic3r prusa

It's a nozzle size issue. The model contains a lot of details which is really challenging to print with a 0.4 mm nozzle. A big nozzle is just not able to print such fine details. You should ...
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  • 1,911
8 votes
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How are infill paths connect to form an efficient path that respect the object's geometry?

The answer to this is pretty much basic algebra: The software tackles the problem by using a set of functions that generate the infill pattern for ALL the build volume, then discard anything outside ...
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8 votes
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Hemispherical Bowl : how is it possible?

There are several factors playing together. For example orientation, printer & slicer settings and more. Reminder First of all, not all overhangs of greater than 45° need support. Many printers ...
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7 votes
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Cooling for big layers

Warping. Especially with materials like ABS, you want the plastic to cool down as gradually (and slowly) as possible, to prevent the print from warping as the cooling plastic contracts. On small ...
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7 votes
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How to print a two color part with only one extruder

What you ask may be easier than you think. The slicing software is unimportant, generally speaking. Consider especially that your requirements fit the solution spot on. Take a look at this ...
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7 votes
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Slic3r: How can I automatically modify the STL filename?

The filename is under the "Print settings" tab. Under output options, you can change the name template. You can use words like: [layer_height] to make the name dynamic. The variable you are looking ...
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6 votes

How to calculate the approximate volume of material used in 3d print?

Possible way to calculate the volume of material used is to multiply the filament length (calculated by CURA after slicing and displayed in lower right corner) and surface of filament tip. Volume = ...
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  • 221
6 votes

Why does Cura insert G0 commands between G1 commands while Slic3r doesn't?

Formally, G0 is a rapid move and G1 is a coordinated move. A G1 will cause the printhead to move in a straight line from the begin to the end position, whereas a G0 allows the printhead to move in any ...
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6 votes
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Turning off heatbed for the last few layers. Good idea or not?

It's not a bad idea, and you should try it. But only on prints with some height, because: The goal of the heated bed is to ensure adhesion for the first few layers. Without the heat on the bottom ...
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6 votes
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Adding extra Z-offset to bed for PETG in Slic3r

An extra gap of 0.2 mm on top of your existing gap seems rather illogical as the filament is not squished at the build plate anymore. Furthermore 0.2 mm plus something you already have will soon ...
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6 votes

Different infill in the same part

While you definitely can do this with custom slicing settings, if the "infill" is a design constraint necessary for the part to properly function, I prefer making it a part of the design rather than ...
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6 votes
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Strange walls/faces when importing self made model from Blender to Cura 3

It is quite common for modelling operations to result in 'non manifold geometry', meaning that some of the faces intersect or are not perfectly joined. Although there is nothing obvious in your model,...
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6 votes
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How could I print a large sphere-like object?

A sphere can be put together quarters easily, but those need support in the center. However, there is a slightly different cut is more economic: Cut a top and bottom "plate" off, print them ...
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6 votes
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Which software do I need to start print something?

First; find a model! To print something you require a model (usually this is in STL format, look into websites called Thingiverse and MyMiniFactory for examples). Once you have a model file, you need ...
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6 votes
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How to post-process G-code to make prints faster using splines and arcs?

I would have liked to answer linking to credible official sources, but I cannot add references either on direct B-spline printing. So I'm writing down my thoughts. I've familiarized myself in B-...
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6 votes
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How do slicers convert an STL file to G-Code?

Slicing in General An STL is a set of triangle surfaces. A Watertight STL - for slicing purposes - has surfaces that always create closed outlines if cut parallel to the XY plane. A Slicer does ...
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